-
Notifications
You must be signed in to change notification settings - Fork 0
/
createToken.js
74 lines (68 loc) · 2.02 KB
/
createToken.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
const fs = require('fs').promises;
const path = require('path');
const process = require('process');
const { authenticate } = require('@google-cloud/local-auth');
const { auth } = require('@googleapis/drive');
//TODO:
//https://developers.google.com/identity/protocols/oauth2/web-server?hl=ru#node.js_1
// If modifying these scopes, delete token.json.
const SCOPES = [
'https://www.googleapis.com/auth/drive',
'https://www.googleapis.com/auth/bigquery'
];
// The file token.json stores the user's access and refresh tokens, and is
// created automatically when the authorization flow completes for the first
// time.
const TOKEN_PATH = path.join(process.cwd(), 'token.json');
const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
/**
* Reads previously authorized credentials from the save file.
*
* @return {Promise<OAuth2Client|null>}
*/
async function loadSavedCredentialsIfExist() {
try {
const content = await fs.readFile(TOKEN_PATH);
const credentials = JSON.parse(content);
return auth.fromJSON(credentials);
} catch (err) {
return null;
}
}
/**
* Serializes credentials to a file comptible with GoogleAUth.fromJSON.
*
* @param {OAuth2Client} client
* @return {Promise<void>}
*/
async function saveCredentials(client) {
const content = await fs.readFile(CREDENTIALS_PATH);
const keys = JSON.parse(content);
const key = keys.installed || keys.web;
const payload = JSON.stringify({
type: 'authorized_user',
client_id: key.client_id,
client_secret: key.client_secret,
refresh_token: client.credentials.refresh_token,
});
await fs.writeFile(TOKEN_PATH, payload);
}
/**
* Load or request or authorization to call APIs.
*
*/
(async function authorize() {
let client = await loadSavedCredentialsIfExist();
if (client) {
return client;
}
client = await authenticate({
scopes: SCOPES,
keyfilePath: CREDENTIALS_PATH,
});
if (client.credentials) {
await saveCredentials(client);
console.log('credentials toke.json was saved')
}
return client;
})()